/Engine/Plugins/Runtime/GeometryProcessing/Source/DynamicMesh/Public/Selections/GeometrySelection.h
FGeometrySelectionPreviewis a combinedFGeometrySelectionandFGeometrySelectionEditor. The purpose of this class is to support things like hover-highlighting, where the Selection system needs to be queried but the result is going to be discarded.FGeometrySelectionPreviewcan only be constructed based on a parentFGeometrySelectionEditor, from which it derives it's configuration, which is then how the rest of the system knows what geometry to provide as a preview/etc
class FGeometrySelectionPreview : public [UE::Geometry::FGeometrySelectionEditor](API\Plugins\DynamicMesh\Selections\FGeometrySelectionEditor)
FGeometrySelect...
PreviewSelection